Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8707738 | Glass-melting furnace, process for producing molten glass, apparatus for producing glass products and process for producing glass products | Osamu Sakamoto, Chikao Tanaka, Seiji Miyazaki | 2014-04-29 |
| 8573007 | Process for producing molten glass, glass-melting furnace, process for producing glass products and apparatus for producing glass products | Osamu Sakamoto, Chikao Tanaka, Seiji Miyazaki, Takahiro Murakami | 2013-11-05 |
| 8544298 | Glass-melting furnace, process for producing molten glass, apparatus for producing glass products and process for producing glass products | Osamu Sakamoto, Chikao Tanaka, Seiji Miyazaki | 2013-10-01 |
| 7675276 | DC/DC converter | Norimasa Hane, Takeshi Naka | 2010-03-09 |
| 7135844 | Control circuit for DC/DC converter | Norimasa Hane, Takeshi Naka | 2006-11-14 |